Interference Effects in Higgs production through Vector Boson Fusion in the Standard Model and its Singlet Extension

Abstract

Interference effects play an important role in Electroweak Physics. They are responsible for the restoration of unitarity al large energies. When, as is often the case, higher order corrections are only available for some particular subamplitude, interferences need to be carefully computed in order to obtain the best theoretical prediction. In the new proposal to estimate the total Higgs width from the off shell cross section, the interference between the Higgs signal and the background is essential. It has been recently pointed out in gluon fusion that whenever more than one neutral, CP even, scalars are present in the spectrum large cancellations can occur. We extend these studies to Vector Boson Scattering, examining interference effects in the Higgs sector in the Standard Model and its one Higgs Singlet extension.

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Cited by in corpus (6)

• LHC Benchmark Scenarios for the Real Higgs Singlet Extension of the Standard Model
• Heavy to light Higgs boson decays at NLO in the Singlet Extension of the Standard Model
• New features in the JHU generator framework: constraining Higgs boson properties from on-shell and off-shell production
• Polarized Z bosons from the decay of a Higgs boson produced in association with two jets at the LHC
• Interference contributions to gluon initiated heavy Higgs production in the Two-Higgs-Doublet Model
• Higgs interference effects at the one-loop level in the 1-Higgs-Singlet extension of the Standard Model